BS ISO 22779:2006 pdf download.Metallic coatings —Physical vapour-deposited coatings of aluminium—Specification and test methods.
5 Designation
The designation shall appear on engineering drawings, in the purchase order, the contract or in me detailed product specification. The designation specifies the basis material, the requirements for stress relief before vapour deposition, the nominal composition and thickness of the vapour-deposited aluminium coating, the type of chromate conversion coating and other supplementary treatment, and the heat treatment to reduce susceptibility to hydrogen embrititement.
5.1 General
The designation shall comprise the following:
a) the term: vapour-deposited coating:
b) the number of this International Standard, ISO 22779;
C) a hyphen:
d) the chemácal symbol of the basis metal;
e) a stroke Ci);
f) symbols for the aluminium coating, as well as any coatings that may be applied prior to and after deposition, separated by strokes for each stage In the coating sequence In the order of application. The coating designation shall include the thickness of the coating, in micrometres.
5.2 Basis metal
The basis metal shall be designated by its chemical symbol, or its principal constituent, if it is an alloy. For example:
— Fe for iron and steel:
— Zn for zinc alloys;
— Cu for copper and copper alloys.
- Al for alumirwum and aluminium alloys:
— Ti for titanium and titanium alloys.
The designation shall appear on engineering drawings, in the purchase order, the contract or in me detailed product specification. The designation specifies the basis material, the requirements for stress relief before vapour deposition, the nominal composition and thickness of the vapour-deposited aluminium coating, the type of chromate conversion coating and other supplementary treatment, and the heat treatment to reduce susceptibility to hydrogen embrititement.
5.1 General
The designation shall comprise the following:
a) the term: vapour-deposited coating:
b) the number of this International Standard, ISO 22779;
C) a hyphen:
d) the chemácal symbol of the basis metal;
e) a stroke Ci);
f) symbols for the aluminium coating, as well as any coatings that may be applied prior to and after deposition, separated by strokes for each stage In the coating sequence In the order of application. The coating designation shall include the thickness of the coating, in micrometres.
5.2 Basis metal
The basis metal shall be designated by its chemical symbol, or its principal constituent, if it is an alloy. For example:
— Fe for iron and steel:
— Zn for zinc alloys;
— Cu for copper and copper alloys.
- Al for alumirwum and aluminium alloys:
— Ti for titanium and titanium alloys.
